Thanks for the correction. I think the figures of the likes should be perceived half as much, as the people giving thumbs-ups are unwilling to hear the different voices from outside the Great Fire Wall after being long educated by the government.

No

Given the fact that the people of PRC are surrounded by the Great Fire Wall, any thumbs-ups on social media supporting extreme policies should be perceived as... (I don't understand what you mean by a doubly-reduced figure.) The figure is reduced twice as much as what?

For some well-known reason, I can't post the link that make me write down the sentence above. But it is a piece of comment on YouTube from a Chinese person whose remark got a lot of likes. His comments get more likes than other opinions, but I think most of the likes probably come from his brainwashed compatriots from the other side of the wall, because China's huge population base leads to such extreme opinions getting more likes than other opinions.

The text is unclear. I have no idea what it means.